Feeds

Oracle 7400 storage drags down cloud storage firm

Customers: We've been down for weeks. Supplier: No you haven't.

The Essential Guide to IT Transformation

Utility IT service supplier Flexiant has blamed intermittently slow service over the past two weeks on slow accesses to disks on an Oracle ZFS-based 7400 storage array.

There has been slow communication between virtual machines on the servers and the 7400 storage. It is being said that some customers' servers have effectively been unusable for a week and a half and that this is an outage, not a slowdown.

A note on the Flexiant website says: "Customers on the FlexiScale platform are currently suffering intermittent slow disk I/O … The cause of the intermittent slow I/O has been isolated to periodic gradual increases in latency on our storage platform. These increases take place over a period of approximately one hour, after which the platform returns to normal. Currently we are seeing these occur around twice a day. The problem was raised with our storage vendor, Oracle, two weeks ago when it was happening far less frequently."

Since then Oracle has said a firmware bug had caused it and that the storage adapter cards were old. Flexiant carried out these Oracle-suggested upgrades on 29 October. It made a limited difference:

Unfortunately, whilst the upgrade has resulted in a reduction in the severity of the slowdowns, it appears not to have fixed the underlying issue; this implies that the underlying cause was not that previously identified by Oracle. The issue is at a ‘P1’ level within Oracle (their top priority for customer issues) and is currently being looked at by their engineering department. The two companies are working closely together to identify the root cause of the problem and to remedy the situation.

Flexiant is based in Livingston, Scotland and provides cloud infrastructure software and services for hosting providers, data centre owners and telecommunications operators. Its flagship product is Extility, a licensed virtualisation platform, and FlexiScale, its public cloud offering, uses it.

CEO Alex Bligh said he was not aware of any user saying their servers had been unusable for a week and a half: "One large user has reported occasional periods of 20 minutes when I/O slows down. To say it has been lasting for two weeks would be untrue. I'm not aware of any user who has raised a [support] ticket saying they have had problems for two weeks."

Anyone with problems is encouraged to raise a support ticket. ®

The Essential Guide to IT Transformation

More from The Register

next story
Sysadmin Day 2014: Quick, there's still time to get the beers in
He walked over the broken glass, killed the thugs... and er... reconnected the cables*
VMware builds product executables on 50 Mac Minis
And goes to the Genius Bar for support
Auntie remains MYSTIFIED by that weekend BBC iPlayer and website outage
Still doing 'forensics' on the caching layer – Beeb digi wonk
Multipath TCP speeds up the internet so much that security breaks
Black Hat research says proposed protocol will bork network probes, flummox firewalls
Microsoft says 'weird things' can happen during Windows Server 2003 migrations
Fix coming for bug that makes Kerberos croak when you run two domain controllers
Cisco says network virtualisation won't pay off everywhere
Another sign of strain in the Borg/VMware relationship?
Forrester says Australia, not China, is next boom market for cloud
It's cloudy but fine down under, analyst says
prev story

Whitepapers

Implementing global e-invoicing with guaranteed legal certainty
Explaining the role local tax compliance plays in successful supply chain management and e-business and how leading global brands are addressing this.
Boost IT visibility and business value
How building a great service catalog relieves pressure points and demonstrates the value of IT service management.
Why and how to choose the right cloud vendor
The benefits of cloud-based storage in your processes. Eliminate onsite, disk-based backup and archiving in favor of cloud-based data protection.
The Essential Guide to IT Transformation
ServiceNow discusses three IT transformations that can help CIO's automate IT services to transform IT and the enterprise.
Maximize storage efficiency across the enterprise
The HP StoreOnce backup solution offers highly flexible, centrally managed, and highly efficient data protection for any enterprise.